NCC 2022 Volume One - Building Code of Australia Class 2 to 9 buildings
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14

Specification 14 Non-required stairways, ramps and escalators

Specification 14 Non-required stairways, ramps and escalators

2019: Spec D1.12: 1
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This Guide does not address every provision in this Specification. However, there are more comments which should be made:

Purpose of Specification 14 

Specification 14 establishes requirements for the construction and installation of stairways, ramps and escalators not required by the BCA, and which are not fire-isolated. These requirements aim to prevent the spread of fire through an unrestricted number of floors through unprotected openings for stairways, ramps and escalators.

Consistency with atrium requirements 

Specification 14 is consistent with the provisions of Part G3, which, without imposing additional requirements, allows an atrium to connect two non-sprinkler protected storeys or three sprinkler protected storeys.

Need for fire shaft 

There does not yet appear to be a practical method of applying this Specification without the construction of a fire shaft. Such a shaft provides the necessary fire separation between the floors. Its construction is similar to that of a fire-isolated stairway shaft.

2019: Spec D1.12: 2
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